256331280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{839}}^1$

素因数の和:941

約数の個数: 160

約数和(自身を含む): 849945600

約数和(自身を除く): 593614320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 67, 76, 80, 95, 114, 120, 134, 152, 190, 201, 228, 240, 268, 285, 304, 335, 380, 402, 456, 536, 570, 670, 760, 804, 839, 912, 1005, 1072, 1140, 1273, 1340, 1520, 1608, 1678, 2010, 2280, 2517, 2546, 2680, 3216, 3356, 3819, 4020, 4195, 4560, 5034, 5092, 5360, 6365, 6712, 7638, 8040, 8390, 10068, 10184, 12585, 12730, 13424, 15276, 15941, 16080, 16780, 19095, 20136, 20368, 25170, 25460, 30552, 31882, 33560, 38190, 40272, 47823, 50340, 50920, 56213, 61104, 63764, 67120, 76380, 79705, 95646, 100680, 101840, 112426, 127528, 152760, 159410, 168639, 191292, 201360, 224852, 239115, 255056, 281065, 305520, 318820, 337278, 382584, 449704, 478230, 562130, 637640, 674556, 765168, 843195, 899408, 956460, 1068047, 1124260, 1275280, 1349112, 1686390, 1912920, 2136094, 2248520, 2698224, 3204141, 3372780, 3825840, 4272188, 4497040, 5340235, 6408282, 6745560, 8544376, 10680470, 12816564, 13491120, 16020705, 17088752, 21360940, 25633128, 32041410, 42721880, 51266256, 64082820, 85443760, 128165640, 256331280]

約数ペア:

[(1, 256331280), (2, 128165640), (3, 85443760), (4, 64082820), (5, 51266256), (6, 42721880), (8, 32041410), (10, 25633128), (12, 21360940), (15, 17088752), (16, 16020705), (19, 13491120), (20, 12816564), (24, 10680470), (30, 8544376), (38, 6745560), (40, 6408282), (48, 5340235), (57, 4497040), (60, 4272188), (67, 3825840), (76, 3372780), (80, 3204141), (95, 2698224), (114, 2248520), (120, 2136094), (134, 1912920), (152, 1686390), (190, 1349112), (201, 1275280), (228, 1124260), (240, 1068047), (268, 956460), (285, 899408), (304, 843195), (335, 765168), (380, 674556), (402, 637640), (456, 562130), (536, 478230), (570, 449704), (670, 382584), (760, 337278), (804, 318820), (839, 305520), (912, 281065), (1005, 255056), (1072, 239115), (1140, 224852), (1273, 201360), (1340, 191292), (1520, 168639), (1608, 159410), (1678, 152760), (2010, 127528), (2280, 112426), (2517, 101840), (2546, 100680), (2680, 95646), (3216, 79705), (3356, 76380), (3819, 67120), (4020, 63764), (4195, 61104), (4560, 56213), (5034, 50920), (5092, 50340), (5360, 47823), (6365, 40272), (6712, 38190), (7638, 33560), (8040, 31882), (8390, 30552), (10068, 25460), (10184, 25170), (12585, 20368), (12730, 20136), (13424, 19095), (15276, 16780), (15941, 16080)]